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People carrying the TT genotype of this SNP may have significantly high levels of homocysteine and lower levels of serum folate
Last reviewed: May 30, 2026 Last updated: May 30, 2026 Written by: Jay Hastings, CEO of PlexusDx Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations
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Vitamin B12 has been shown to improve the depth and quality of sleep within studies
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